7-Head Automatic Granite Column Polishing Machine — product image

Patented Machines / Automated Processing

7-Head Automatic Granite Column Polishing Machine

For profiled rotational stone workpieces with changing diameters and radiused transitions. Coordinated three-axis head groups and compliant pneumatic pressure control connect rough, intermediate and fine polishing passes.

Material
Rotational workpieces in granite and other stone
Workpiece
Ornamental columns, balcony balusters, vase-shaped columns, bases and rotational stool components
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Machine Overview

Designed for rotational stone workpieces with varying diameters and radiused transitions, this polisher keeps its heads in contact as the profile changes. Multiple coordinated three-axis head groups, compliant pneumatic pressure control and a series of tapered abrasive rods support consecutive rough, intermediate and fine polishing passes.

Workpieces & Applications

Suitable for ornamental columns, balcony balusters, vase-shaped columns, column bases and rotational stone stool components. Applications include garden stonework and architectural decoration. Suitability depends on the rotational profile, diameter transitions and required radii.

Core Process

  • Coordinated three-axis head groups: follow changing diameters and radiused sections of the workpiece.
  • Compliant pneumatic pressure control: accommodates blank variation and improves consistency of contact pressure.
  • Series of tapered abrasive rods: supports successive rough grinding, intermediate grinding and fine polishing passes.
  • Automatic wear compensation: compensates for abrasive wear to reduce repeated manual adjustment.

Key Features

  • Profile following: handles changing column diameters and rounded transitions with less repetitive manual finishing.
  • Consistent surface quality: combines contour following and pressure control to improve consistency across a batch.
  • Connected processing stages: successive polishing passes support batch production planning.
  • Operator training: a workpiece-specific process reduces dependence on manual polishing experience.

Specifications

ItemSpecification / Description
Suitable WorkpiecesRotational stone workpieces with varying diameters and radiused transitions
Motion & Pressure ControlCoordinated three-axis head groups and compliant pneumatic pressure control
Grinding SystemSeries of tapered abrasive rods for rough, intermediate and fine polishing passes
CompensationBlank-variation accommodation and automatic abrasive wear compensation
Polishing Heads7 heads
Overall DimensionsApprox. 4.9 × 1.2 × 1.9 m
Machine WeightApprox. 2.5 t
Total PowerApprox. 15 kW
Max. Workpiece Diameter250 mm
Workpiece Length1200 mm

These reference specifications apply to the 7-head model. Head count, working diameter and length can be customised. The promotional image shows a 6-head arrangement; refer to this table for the current 7-head model.

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Related Patent Documentation

Patent Title (Translated)A Column Polishing Machine
Patent TypeUtility Model Patent
Patent NumberZL 2022 2 3373708.0
Patent Holder Named on CertificateLaizhou Blue Whale Machinery Technology Co., Ltd.
Grant Publication Date11 April 2023

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